<template>
	<view>
		<view class="search-box">
			<!-- 使用 uni-ui 提供的搜索组件 -->
			<uni-search-bar @input="input" :radius="100" cancelButton="none"></uni-search-bar>
		</view>
		<view class="search-list" v-if="SearchList.length !== 0">
			<view class="serarch-item" v-for="(item,i) in SearchList" :key="i" @click="gotoGoodsDetail(item)">
				<view class="goods_name">{{item.goods_name}}</view>
				<uni-icon type="arrowright" size="16">></uni-icon>
			</view>
		</view>
		<view class="history-box" v-else>
			<view class="history-title">
				<text>搜索历史</text>
				<uni-icons type="trash" size="17" @click="chearHistoryList"></uni-icons>
			</view>
			<view class="history-list">
				<uni-tag v-for="(item,i) in historys" :key="i" :text="item" @click="gotoGoodsList(item)"></uni-tag>
			</view>
		</view>
	</view>
</template>

<script>
	export default {
		data() {
			return {
				SearchList: [],
				historyList: [],
				timer: null,
				keyWord: ''
			};
		},
		computed: {
			historys() {
				return [...this.historyList].reverse()
			}
		},
		onLoad() {
			this.historyList = JSON.parse(uni.getStorageSync('keyWord') || '[]')
		},
		methods: {
			input(e) {
				clearTimeout(this.timer)
				this.timer = setTimeout(() => {
					this.keyWord = e;
					this.getSearchList()
					const set = new Set(this.historyList)
					set.delete(this.keyWord)
					set.add(this.keyWord)
					this.historyList = Array.from(set)
					uni.setStorageSync('keyWord', JSON.stringify(this.historyList))
				}, 500)
			},
			async getSearchList() {
				if (this.keyWord == null || this.keyWord == '') {
					this.SearchList = []
					return
				}

				const {
					data: res
				} = await uni.$http.get('/api/public/v1/goods/qsearch', {
					query: this.keyWord
				})
				if (res.meta.status !== 200) return uni.$showErrorMsg()
				this.SearchList = res.message
			},
			gotoGoodsDetail(item) {
				console.log(item);
				uni.navigateTo({
					url: '/subpkg/goods_detail/goods_detail?goods_id=' + item.goods_id
				})
			},
			clearHistoryList() {
				this.historyList = [];
				uni.setStorageSync('keyWord', JSON.stringify(this.historyList))
			},
			gotoGoodsList(item) {
				uni.navigateTo({
					url: '/subpkg/goods_list/goods_list?query=' + item
				})
			}
		}
	}
</script>

<style lang="scss">
	.search-box {
		position: sticky;
		top: 0;
		z-index: 999;

		.uni-search-bar {
			height: 50px;
		}
	}

	.search-list {
		padding: 0 5px;

		.serarch-item {
			display: flex;
			align-items: center;
			justify-content: space-between;
			font-size: 13px;
			padding: 13px 0;
			border-bottom: 1px solid #efefef;

			.goods_name {
				white-space: nowrap;
				overflow: hidden;
				text-overflow: ellipsis;
				margin-right: 3px;
			}
		}
	}

	.history-box {
		padding: 0 5px;

		.history-title {
			display: flex;
			align-items: center;
			justify-content: space-between;
			height: 40px;
			font-size: 13px;
		}

		.history-list {
			display: flex;
			flex-wrap: wrap;

			.uni-tag {
				border: 1px solid #efefef;
				margin-top: 5px;
				margin-right: 5px;
			}
		}
	}
</style>